She trips, launching Cody into the air and into a tree.
later in "Major Boobage", Kenny became addicted to cheesing and when cats became illegal, he ignores the law and continues to get high.
Heather bumps into Sierra, offering to team up with her and help Cody down.
He eventually stopped, but began to get high again after smelling some strong flowers.
However, a baboon grabs him and runs off which greatly angers Sierra.